Chilling surveillance video of terrorist Omar Mateen entering the Pulse nightclub in Orlando and shooting victims in the midst of the 2016 murder spree was shown to jurors Friday as part of the federal trial against Mateen's wife, Noor Salman.

Another Austin explosion -- possibly triggered by a trip wire -- injured two people on bicycles Sunday night, leaving police frantically working to determine if the blast is linked to a trio of package bombings that have gripped the Texas capital in fear.